GOP hopefuls on immigration, gay marriage

- Texas Gov. Rick Perry: Shortly before entering the 2011 presidential race, Perry said he supports states' rights so much that he's fine with the approval of gay marriage in places like New York. Within days of formally declaring his White House run, however, Perry changed his mind. In August 2011, he signed a National Organization for Marriage pledge to defend the institution as between one man and one woman.

- Florida Sen. Marco Rubio: In a lengthy statement, Rubio said the Supreme Court "made a serious mistake" and "overstepped its important, but limited role." He said gay marriage should be decided through the democratic process and "not through litigation and court pronouncements."

- Wisconsin Rep. Paul Ryan: Following the Supreme Court's decision, Ryan said the institution of marriage is a "unique relationship between one man and one woman" and the "foundation for the family." He said it was now up to states "to decide this issue through the democratic process."

- Pennsylvania Sen. Rick Santorum: Santorum said he was very disappointed with the Supreme Court rulings, calling the Defense of Marriage Act decision "another case of the high court overstepping its role, just as it did with Roe v. Wade." He said the issue "should be left to the democratic process, not to five activist judges."